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Gamophyceae: Zygnematales: Desmidiaceae

 Euastrum sinuosum
Lenormand var. dideltoides Krieger

Euastrum sinuosum Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections)
Species [var. dideltoides ]: Cell body 56-90 μm long, 31-50 μm wide, isthmus 7-14 μm wide, (Illustrations of the Fresh-water Algae, 1977).

Euastrum sinuosum Lenormand var. dideltoides Krieger ?, cell body 85 μm long, 48 μm wide, isthmus 13 μm wide, x 640, Shimaru-no-ike, Kejo-numa, Furukawa city, Miyagi Pref., Japan, November 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euastrum sinuosum Euastrum sinuosum

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